The most common and most likely answer to this crossword clue is the 4 letter word NICE
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More clues leading to the result NICE
Buddy explains!

The straight part
We know that "Agreeable/resort" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case agreeable/resort = nice.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does NICE mean?
NICE noun- Niceness.
- Pleasant, satisfactory.
- Of a person: friendly, attractive.
- Respectable; virtuous.
- (with and) Shows that the given adjective is desirable, or acts as a mild intensifier; pleasantly, quite.
- Silly, ignorant; foolish.
- Particular in one's conduct; scrupulous, painstaking; choosy.
- Particular as regards rules or qualities; strict.
- Showing or requiring great precision or sensitive discernment; subtle.
- Easily injured; delicate; dainty.
- Doubtful, as to the outcome; risky.
- Nicely.
- Used to signify a job well done.
- Used to signify approval.
- To run a process with a specified (usually lower) priority.